【摘要】 为提高圆筒型非接触超声电机的实用性,提出一种圆筒型非接触式超声电机,电机主要由圆筒形的定子和圆筒形的转子构成,通过轴输出扭矩。文中对该型电机的驱动机理进行了分析,利用声流理论分析该电机的驱动力,获得了堵转力矩的特性。最后采用激光多普勒测振仪测试了样机定子的振动特性,并测量了电机的转速和堵转力矩,最高转速达到2100r/min,堵转力矩为1.3×1-05N.m。研究结果表明,电机运行性能良好,理论分析方法是有效的。更多还原

【Abstract】 To improve the practicability of the cylinder type non-contact ultrasonic motor,a motor consisted of a cylindric stator and a cylindric rotor with a axletree is proposed.The driving mechanism of the motor is analyzed.Driving torque characteristics of the motor are obtained by analyzing the drive force using the acoustic streaming theory.Finally,the laser doppler vibrometer（LDV） is used to measure vibration characteristics of the prototype stator.The maximal revolution speed is 2 100 r/min,and the maximal torque is 1.3×10^-5N·m.Results indicate that the motor run well and the analysis of the method is valid.更多还原